There's no way to extend the ColumnQualietyFilter via configuration, but it sounds like you are on top of it. You just need to extend the class, possibly copy a bit of code, and change the equality check to a compareTo after converting the Strings to Doubles.
On Wed, Aug 21, 2013 at 10:00 AM, Marc Reichman < [email protected]> wrote: > I have some data stored in Accumulo with some scores stored as column > qualifiers (there was an older thread about this). I would like to find a > way to do thresholding when retrieving the data without retrieving it all > and then manually filtering out items below my threshold. > > I know I can "fetch" column qualifiers which are exact. > > I've seen the ColumnQualifierFilter, which I assume is what's in play when > I fetch qualifiers. Is there a reasonable pattern to extend this and try to > use it as a scan iterator so I can do things like "greater than" a value > which will be interpreted as a Double vs. the string equality going on now? > > Thanks, > Marc >
